Description
Overview
The DP820 (3BSE013228R1) pulse counter module is part of ABB’s S800 I/O family, designed to capture high‑speed pulse signals with RS‑422 compatibility. It provides accurate counting and timing functions for applications requiring precise monitoring of encoder pulses, flow meters, and other pulse‑based instrumentation.
Technical Specifications
| Parameter |
Specification |
| Model |
DP820 (3BSE013228R1) |
| Product Type |
Pulse Counter RS‑422 Module |
| Brand |
ABB |
| Product Series |
S800 I/O |
| Function |
High‑speed pulse counting and timing measurement |
| Signal Standard |
RS‑422 differential input |
| Input Type |
Pulse/encoder signals |
| Max Counting Frequency |
Depends on system configuration (verify with ABB documentation) |
| Dimensions |
4.3 × 10.5 × 11.8 cm |
| Weight |
0.16 kg |
| Operating Temperature |
–20°C to +55°C (typical for S800 modules) |
| Protection Rating |
IP20 (for cabinet‑protected environments) |
| Power Requirements |
Supplied via S800 I/O backplane |
| Communication |
S800 I/O module bus (Ethernet router reference removed; not applicable) |
| Country of Origin |
Sweden |
| HS Code |
8537101190 |
| Availability |
In stock |
| Condition |
New |
Functional Description
The DP820 module provides high‑accuracy pulse counting for distributed control systems using ABB’s S800 I/O platform. Its RS‑422 differential input ensures noise‑resistant signal acquisition, making it suitable for electrically noisy industrial environments. The module supports precise measurement of frequency, pulse width, and total counts, enabling reliable monitoring of rotating machinery, flow sensors, and position encoders.
Its compact design allows efficient installation in S800 I/O node assemblies. The module integrates seamlessly with AC 800M controllers and other ABB DCS architectures, ensuring synchronized data exchange and deterministic performance. Built‑in diagnostics help engineers quickly identify wiring issues, signal loss, or abnormal pulse behavior.
Application Scenarios
-
Encoder pulse counting for motion and speed monitoring
-
Flow measurement using pulse‑based flow meters
-
High‑speed event counting in process automation
-
Integration into S800 I/O‑based distributed control systems
-
Replacement module for existing ABB pulse counter installations
Similar Model Comparison
| Model |
Function |
Typical Use |
| DP820 |
Pulse counter RS‑422 |
High‑speed pulse acquisition |
| DI810 |
Digital input module |
Standard digital signal monitoring |
| AI801 |
Analog input module |
Process variable measurement |
FAQ
Q: Does the DP820 support Ethernet communication? A: No. It communicates through the S800 I/O backplane and does not function as an Ethernet router.
Q: Can the module handle encoder signals? A: Yes. Its RS‑422 differential input is suitable for many encoder types.
Q: Is hot‑swap supported? A: S800 I/O modules typically support hot‑swap, but confirmation should be made based on the specific system configuration.
